hickey vs pimple

hickey and pimple both are nouns.

Word	Noun	Adjective	Verb	Adverb
hickey	Yes	No	No	No
pimple	Yes	No	No	No

As nouns, hickey and pimple are synonyms defined as:

hickey and pimple: a small inflamed elevation of the skin; a pustule or papule; common symptom in acne

Other synonyms of hickey include zit.

hickey (noun)	pimple (noun)
a temporary red mark on a person's skin resulting from kissing or sucking by their lover	a small inflamed elevation of the skin; a pustule or papule; common symptom in acne
a small inflamed elevation of the skin; a pustule or papule; common symptom in acne